Supernatural Fic

[scarletspy]

I'm looking for a Superatural fic I thought I had bookmarked last year but apparently didn't. In the fic, Uriel and Castiel were going into hell (I think to try to keep Dean from breaking). It was a multi-chapter fic with possibly 15+ chapters. The title might have been in latin but I' not 100% on that. I initially found it over at the deancastiel comm so it's likely that it involved that pairing. I've been looking for months with no luck.

Is there anyone who knows the fic I mean? I'm getting desperate.